| 摘要 |
A road plate ramp strip has a ramp portion and a shoulder portion, preferably integral to one another, such as by integral casting or molding. The ramp strip preferably has a plurality of traction enhancing variations in an upper surface of the ramp, such as buttons grooves, dimples, holes or the like. As an environmental enhancement and to reduce costs, the ramp strip preferably has a constituent composition of a substantial admixture of post-consumer vehicular tire rubber. The ramp strip preferably has a spring lip extending from an upper portion of the ramp portion out over the shoulder portion and downward toward it at an angle alpha. The lip is preferably integral to the ramp portion and depends from an upper portion of the ramp out over the shoulder. There is also a method of covering an excavated work place or other surface irregularity with one or more cover plates and ramp strips.
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